CVE-2026-16157

Duplicati backup software v2.3.0.1 is vulnerable to an incorrect permission assignment vulnerability

High · published July 22, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
3.0
In the wild
Unconfirmed
What it is

Duplicati v2.3.0.1 backup software gives Authenticated Users MODIFY permissions that propagate to all subdirectories. Installing the software outside of the Program Files directory, or on a custom path, creates a LocalSystem service running from a directory that any standard local user can write to. A standard local user can overwrite any DLL in the service directory. On service restart, the OS loads the attacker's DLL before any managed code runs, executing arbitrary code as SYSTEM.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00140 · 3.0th percentile
Published
2026-07-22T17:29Z
EPSS history
Timeline
  • 22 JUL 17:29Z
    Duplicati backup software v2.3.0.1 is vulnerable to an incorrect permission assignment vulnerability
    cvelistv5